# Jan Mandel/Blog/2011 Jun Jul

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## June 21: Revived original osimorph

Forecast: Data:

Analysis: With morphing:

Data registration: Analysis registration:

## July 12: Data assimilation seminar: Spectral and morphing ensemble Kalman filters and applications

1. Presentation "Spectral and morphing ensemble Kalman filters and applications" at the 31st International Symposium on Forecasting
2. Morphing and assimilation of Opera radar data for precipitation modeling in WRF
3. A new quick and dirty method - Wavelet optimal statistical interpolation. Inspired by the Laplace operator-based FFT OSI.
4. Progress in Jon's Matlab classes for data assimilation.

## July 19: Creating SOCKS proxy

1. In Firefox->Preferences->Network->Settings->Manual Proxy Configuration: Enter in SOCKS Host box 127.0.0.1 and the port (say, 8080)
2. Connect to the host you want to use as proxy by  ssh -D 8080 user@hosts and leave the ssh session open

That is all, it's really so simple! The proxy works also for https, video streaming, etc. For more details see http://magellan.nersc.gov -> using magellan -> creating a SOCKS proxy and this guide.

For other browsers than Firefox the settings may be similar. But proxy settings in some browsers integrated into the OS may affect all network connections, not just that browser... and when you do the proxy to work, the IT services know all where you are going... so I rather use Firefox.

## July 24: Math display in Wikipedia

1. in My Preferences -> Appearance select Skin = Vector, Math= Leave it as TeX. Save. On the Skin = Vector line, click "custom Java script"
2. This will put you in edit mode for Special:MyPage/vector.js. Create the file with the contents
mathJax={}; mathJax.fontDir="http://cdn.mathjax.org/mathjax/latest/fonts";
importScript('User:Nageh/mathJax.js');


See Wikipedia_talk:WikiProject_Mathematics/Archive/2011/Jul#MathJax. Unfortunately you need to be logged in so this will not work on a page you arrive at through a link.

No longer works, MathJax is now one of the options you turn on in your account preferences. Jmandel 07:48, 16 August 2012 (MDT)

## July 26: Data assimilation seminar: Forest fires and epidemics in random media

• Percolation
• Stauffer, 1979, Scaling theory of percolation clusters, Stauffer-1979-STP
• Kesten, 1982, Percolation theory for mathematicians. review Kesten-1982-PTM-review
• Hunt and Ewing, Percolation theory for flow in porous media, Springer 2009, Chapter 1 Hunt-2009-PTF-ch1
• Aizenman et al, 1987, Uniqueness of the infinite cluster and continuity of connectivity functions for short and long range percolation, Aizenman-1987-UIC
• Ewing and Hunt, 2006, Dependence of the electrical conductivity on saturation in real porous media, Ewing-2006-DEC
• Cellular automata models
• Grassberger, 1983, On the critical behavior of the general epidemic process and dynamical percolation, Grassberger-1983-CBG
• Albinet, Searby, Stauffer 1986, Fire propagation in a 2-D random medium Albinet-1986-FPR
• Cox and Durrett, 1988, Limit theorems for the spread of epidemics and forest fires, Cox-1988-LTS
• Alexandridis et al, 2008, A cellular automata model for forest fire spread prediction: The case of the wildfire that swept through Spetses Island in 1990, Alexandridis-2008-CAM
• Applications
• Hargrove et al, 2000, Simulating fire patterns in heterogeneous landscapes, Hargrove-2000-SFP
• Pascual, 2005, Criticality and disturbance in spatial ecological systems, Pascual-2005-CDS
• Lindquist et al, 2011, Effective degree network disease models Lindquist-2011-EDN
• Matlab demo